英语词汇anti-knock怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	anti-knock
释义	anti-knock /ˌæntɪˈnɒk/ noun mass noun a substance (such as tetraethyl lead) added to petrol to inhibit pre-ignition 抗爆剂。
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